After experiencing first-hand the unpleasant consequences of unwanted neighbourhood cats entering his home through the cat flap and terrorising his cat Flipper, Dr Nick Hill, a Cambridge physicist, set out to find a solution. He knew he didn?'t want Flipper to wear a collar, so he developed a revolutionary technology that uses a cat?'s existing microchip like an electronic door key, giving Flipper exclusive access to his home and leaving intruder animals at the door. After three years of intensive research and development, the SureFlap® brand was born.